1978 House Bill 0483. An Act Providing Certain Creditable Service For The Employees Of The Commonwealth And The Massachusetts Turnpike Authority Or Of Any City And Town, Or Of Any Other Political Subdivision Who Are On Leave Of Absence For The Purpose Of Acting As Representatives Of Employee Organizations Whose Membership Includes Employees Of The Commonwealth And The Massachusetts Turnpike Authority, Of Any City And Town, Or Of Any Other Political Subdivision.